actually seeing the pit is one of the good things about the second idea. the victims' families are particularly in favor of this because they can be closer to their loved ones this way.

as for the second one, it looks neat but there's no office space in the towers which means more office space needed on the ground, including possibly pushing in to the tower footprints.

I still don't understand why they want to build a tall structure there. After what happened, no one will want to rent office space at the top of a building there. tall buildings are just going to be another bull's eye for terrorists.